Maximum no of orders we can fill in a night= (No of minutes per night-Duration of First Setup) / Cycle Time + 1= ((240 – 26) / 10) + 1= 22.4 orders~ 22 orders

Explanation: This is because the first order takes 26 minutes for the first batch of cookies to finish and each subsequent batch takes 10 minutes because it has reached steady state. Thus, we take 4 hours worth of time, minus off 26 minutes for the first batch and then divide by ten to get the number of orders.

3.How much of your own and your roommate’s valuable time will it take to fill each order?

Explanation: Our group defines valuable time as time that can be used to do other kinds of productive work. Hence, processes carried out by me, mixing the ingredients and dishing the cookies onto the tray, takes up 8 minutes of my valuable time. This is because I have to be physically present and be doing “work”. However, only 4 minutes of my roommate’s valuable time is used because the 9 minutes (baking of cookies) and 5 minutes (cooling the cookies) can be used to do other more productive work.

4.Because your baking trays can hold exactly one dozen cookies, you will produce and sell cookies by the dozen. Should you give any discount for people who order two dozen cookies, three dozen cookies, or more? If so, how much? Will it take you any longer to fill a two-dozen cookie order than a one-dozen cookie order?

It depends whether the two-dozen cookie order and three-dozen cookie orders are of the same flavor or different ones. However, we assume that orders that are more than one-dozen cookies are of the same flavor. This is because if the orders are of more than one-dozen cookies but of different flavours, each batch will come out exactly 26 minutes later because we have to re-mix the ingredients again.

Given that the orders of more than one-dozen cookies are of the same flavor, we should give a discount. Our discount is based on how much of our valuable time identified in part (c) that we have used in the process of baking the cookies.

We will need 1 food processor and 6 baking trays. This is because even if we increase the number of food processors, the bottleneck is still the oven and this will only cause an excess on the number of...

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Operations Management
Fall 2013
Kristen’s Cookie Company
September 26, 2013
Kristen and her roommate are preparing to launch Kristen’s Cookie Company in their on-campus apartment. The company will provide fresh cookies to hungry students late at night. Evaluation of the preliminary design for the company’s production process will be required in order to make key policy decisions, including what prices to charge, what equipment to order and how many orders to accept, and to determine whether the business can be profitable.
i) Identify the items, resources, and the tasks. Draw a process flow diagram for this process.
Items:
Cookie Ingredients
Cookie Dough
Baked Cookies
Resources:
Important Resources
Kristen
Roommate
Oven
Mixer
Computer
Minor Resources
Trays
Spoons
Boxes
Printer & Printer Paper
Many others
Tasks:
Relevant Tasks
Receive Order
Add Ingredients to Bowl & Mix
Spoon Dough onto Tray
Let Cookies Bake
Let Cookies Cool
Pack Cookies into Box
Accept Payment
Figure 1: Process Flow Diagram for Kristen’s Cookie Company
Figure 2: Process Schedule Gantt Chart for Kristen’s Cookie Company
ii)
a) How many cookies can Kristen produce (with roommate’s help)...

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Chocolate Chip Hazelnut Cookies
Topic: How to make Chocolate Chip Hazelnut Cookies
I. Introduction
A. Attention- getter: Think about to when you were little. Did you and
your mom or family make Pillsbury’s slice and bake cookies? (SLIDE
CHANGE) Do you remember the smell that spread throughout your
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Well today I am going to show you a way to make a more grown up
and sophisticated chocolate chip cookie by scratch.
B. Ethos: My mom has always been the one in the kitchen getting full of
flour to make my sister and I dessert whenever we wanted. I
remember that I had always wanted to make chocolate chip cookies
since I was younger. The reason I was so fascinated by chocolate
chip cookies was because of one of my favorite books, The Biggest
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almost every week (SLIDE CHANGE)
C. Thesis Statement: Baking anything by scratch is as easy as pie, if you
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II. Body
A. Information on source
1. From Giada De Laurentiis Cooking book Giada’s
Family Dinners
2. Giada -- favorite chef on the food network easy
/fun. (SLIDE CHANGE)
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...this process the Step 3 & 4 have the longest processing time of 10 minutes which means this is the bottleneck in the process. We know that the bottleneck determines the maximum output of the process. The bottleneck time is also referred to as the cycle time.
Cycle time = 10 minutes. Therefore you can bake 6 batches cookies an hour 6 batches X 10 minutes = 60 minutes
6 Batches X 4 Hours = 24 trays or 6 dozen cookies can be backed in one night. Note that is if there was no wait time.
26 + 10 (x-1) = 240 minutes
= 22 orders can be taken a night
Question 3: How much of your own and your roommates valuable time will it take to fill each order?
My Time Roommate Time
Mix Ingredients = 6 minutes Place cookies in oven = 1 minute
Cookies onto tray = 2 minutes Pack Cookies = 2 minutes
Receive Payment = 1 minute
Total Time = 8 minutes Total Time = 4 minutes
Question 4: For Kristen’sCookies develop a Gantt Chart of the activities and the resources (Kristen, Roommate and Oven). Determine the amount of idle time Kristen and Roommate has for each dozen cookies produced. What is the time for Kristen and Roommate if the orders are for two-dozen cookies (of the same time) or three-dozen?
Tasks
Mix Ingredients 1 2 3 4 5 6
Spoon out on tray...

...Kristen’sCookies Case
What are the order winners and Qualifiers for Kristen’sCookies?
Kristen’sCookies is conveniently located on campus and will cater to hungry students late at night. The company will not only let the students customize their cookies, but also bake them fresh. Students will have a wide variety of ingredients to choose from and this bake to order concept will ensure that cookies are to consumer’s liking. Based on this model, order qualifiers are the physical location of the company and the order winners are the unique and freshly baked cookies.
Assuming all orders are for one dozen cookies, how long will it take you to fill the first order of the night?
For one dozen cookies, ignoring the requirement of preheating the oven, it will take twenty-six minutes to fill the first order of the night. Reference Exhibit A.
If you make a mistake on a batch of cookies, how long will it take to make a new order?
The amount of time to make a new order will depend on where in the process a mistake is made. For instance, if a batch is dropped before the baking process, the batch will take an additional 8 minutes to be mixed and spooned again. If the cookies are burnt or dropped coming out of the oven, then the...

...|
Kristen’s Cookie Company
|
Sunset Team 4 |
A. Dobo, F. Montoya, L. Lie, A. Bustamante, M. Chitipiralla, E. Dzelzkalns
1/21/2013
|
Process Chart
Figure 1: Kristen’s Cookie Co. Process Flow Chart
1. How long will it take you to fill a rush order?
A rush order will take 26 minutes to fulfill, as illustrated in the Gantt chart below.
Figure 2: Rush-order Gantt chart
2. How Many Orders can you fill in a night assuming you are open four hours each night?
a. Assuming steady state at the beginning of the period and no limitation on the number of trays and mixers:
* Order time of first order is 26 minutes.
* Second order is fulfilled by the 36th minute
* Steady-state rate is 1 dozen per 10 minutes
* Hourly steady-state production is 6 dozen per hour
* Production per night is 24 dozen per night
b. Assuming a start at the beginning of the period and no limitation on the number of trays and mixers:
* Order time of first order is 26 minutes.
* Second order is fulfilled by the 36th minute
* Steady-state rate is 1 dozen per 10 minutes
* First hour production is 3 dozen.
* Hourly production thereafter is 6 dozen per hour
* Production per night: (240-26) / 10 = 21 dozen per night
3. How much of your own and your roommate’s valuable time will it take to fill each order?
Based on the table below of resource utilization per order:
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...Kristen's Cookie Company  Case write-up
Process flow diagram
Inputs  Basic Dough, Ingredients
Output  Cookies packed in boxes
Flow Units  Cookies
Resources  Kristen and her roommate, Oven, Spoons, Trays, Food Processor
Assumptions 
1. An order is for a dozen cookies of any one type.
2. Kristen and her roommate work for 4 hours per day.
Q1. Time Taken for a rush order = Sum of time taken for Activities 1,2,3,4,5,6, and 7 for an order
= 6 + 2 + 1 + 9 + 5 + 2 + 1 = 26 minutes
Q2. Process Capacity = minimum of time taken for all process steps.
Process step capacity = # of resources / Activity Time ( The values for each step are mentioned in the
process flow diagram above.)
Hence Process Capacity = minimum ( 40,120,240,26.6,48,120,240) = 26.6 orders/day
Or in other words, Kristen and her roommate can fill in 26.6 orders in four hours.
Q3. Time taken by Kristen for one order = Time taken by Kristen to perform activity 1 and 2
= 6 minutes + 2 minutes = 8 minutes.
Time taken by her roommate for one order = Time taken to perform activities 3,6, and 7
= 1...

...﻿
OPIM 902 – Operations Management Case Analysis –
Kristen’s Cookie Company
Arif Durak, İlker Koç, Nihat Alpin Mütevellioğlu, Uğur Günal, Ersan Bilik
31 May 2014
1) How long will it take you to fill a rush order?
For an order that is for 1 dozen (or less) cookies with the same ingredients, it takes 26 minutes assuming the customer pays after packing. If they pay during the cooling period, a minute could be saved.
Time (minutes)
Operation
0
Take Order
6
Wash & Mixing
2
Spoon
1
Set Temp/Time
9
Bake
0
Remove from oven
5
Cool
2
Pack
1
Payment
26
Total
2) How many orders can you fill in a night, assuming you are open four hours each night ?
Max # of the orders that can be filled is related with the slowest operation which is baking due to both operation time & oven capacity (bottleneck)
Time (minutes)
Operation
Batch Per hour
6
Mixing
7,50
2
Spoon
1
Set Temp
6,00
9
Bake
5
Cool
12,00
2
Pack
30,00
1
Payment
60,00
Because operations for the next batch could be done in parallel with the current batch, the time required for a number of orders is 26 + 10 * (# orders – 1).
Therefore, for 1 order 26 minutes are required, for 2 orders 36 min.s are required, for 3 orders 46 minutes are required and so forth. (Assuming orders are for a dozen cookies and payment is made after packing)
4 hours =...